<?php 
	$arg = 'B';
	$vehicle = ( 
				( $arg == 'B' ) 
				? 'bus' 
				: (
					( $arg == 'A' ) 
					? 'airplane' 
					: (
						( $arg == 'T' ) 
						? 'train' 
						: (
							( $arg == 'C' ) 
							? 'car' 
							: (
								( $arg == 'H' ) 
								? 'horse' 
								: ( 'feet' )
							)
						)
					)
				)
               );
	echo $vehicle;
	
	if($arg == 'B')
		$vehicle = 'bus';
	else
	{
		if($arg == 'A')
			$vehicle = 'airplane';
		else
		{
			if($arg == 'T')
				$vehicle = 'train';
			else
			{
				if($arg == 'C')
					$vehicle = 'car';
				else
				{
					if($arg == 'H')
						$vehicle = 'horse';
					else
						$vehicle = 'feet';
				}
			}
		}
	}
	echo $vehicle;
	
	
	
	$arg = 'F';
	$vehicle = ( ( $arg == 'B' ) ? 'bus' :
               ( $arg == 'A' ) ? 'airplane' :
               ( $arg == 'T' ) ? 'train' :
               ( $arg == 'C' ) ? 'car' :
               ( $arg == 'H' ) ? 'horse' :
               'feet' );
	echo $vehicle;
	
	if($arg == 'H')
		$vehicle = 'horse';
	else
  
?>